Type-writing machine.



J. IELBEL. r TYPE WRITING MACHINE.

APPLICATION FILED JAN. 21, 1909.

Patented June 1, 1909.

5 SHEETS-SHEET 1.

wan Has J'. FELBEL. TYPE WRITING MACHINE. APPLICATION FILED JAILZI',1905,

vP a-tented-June1.190%

5 SHEETS-SHEET 2.

INVENTUR WM o WITNEEEEEi J. PBLBEL. TYPE WRITING MACHINE.

I I APPLICATION FILED JAN. 21, 1909. 923,503. Patented June 1, 1909.

5 SEBETS-SHEET a.

WITNESEEi- 4 |NVENTEIR= I. PELBEL. TYPE WRITING MACHINE. APiLIOATIONIILED JAN. 21, 1909.

Patented June 1, 1909.

WITNESSES:

INVENTEIR:

J. FELBEL.

TYPE WRITING MACHINE.

APPLICATION IIVLED JAN. 21, 1909.

Patented June 1. 1909.

6 SHEETS-SHEET 5.

1 UNITED sirrrrs entrant i e il jni.

JACOB FELBEL, NEW YORK, N. Y., ASSIGNOR TO UNION TYPEWRITER OMPANY, ObJERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TYRE-WRITING MACHINE.

Specification of Letters Patent.

Application filed January 21, 1909.

Patented June 1, 1909;

Serial N 0. $73,40.

county of New York and State of New York, have invented certain new anduseful lin-- provements in Type Nriting Machines, of which the followingis a specification. F

My invention relates especially to retarding contrivances fortypewriting machines, and has for its main object to provide improved.devices of this description.

To the above and other ends, the invention consists in the features.ofconstrnction,

"Monarch typewriting machine,

details of the 'escapenient devices.

combinations of'devices and arrangements of parts hereinafter described.and particularly ointed out in the claims. My invention is shown asapplied to a ut the nature of said invention is such that it may beadapted to other styles of writing machines. This invention has beenmade as an improvement-on the construction shown inmy Letters Patent No.898,635 dated Sept. 18, 1908 and alsoas an imbrovement on theconstruction devised by erbert H. Steele and set forth in his pendingapplicatioii'for patent Sr. No. 471,627 filed Jan. 11, 190.).

In the drawings, Figure 1 is a vertical front to rear sectional view ofa Monarch typewriting machine embodying my invention, parts vof themachine being'omitted. Fig. 2 is a fragmentary vertical sectional. viewshowing Fig. 3 is a rear elevation of the machine, parts being omittedand parts broken away. Fig. 4: IS a rear elevation, partly in section,showing on an enlarged scale the retarding contrivance and associateparts, the cover plate of saidcontrivance being omitted. Fig. 5 is ahorizjontal sect1onal view of the retarding contrivance taken on a planerepresented by the dotted line at in Fig. 4 and, looking in thedirection of the arrow at said line, the cover plate, the escapeinentwheel and pinion and the supporting bracket therefor also being, shown.Fig. 6 is' a front elevation showing the retarding contrivance andassociate parts. Fig. 7 is a pore iective viewof a part ia. 8 is aperspective view showing a modification of one of the retardingelements. Figs. -9, 10 and 11 are respectively longitudinal vertical,transverse vertical, and horizontal sectional views illustrating amodified spring adjusting device for the retarder c011- 'trivance. Figs.12, 13 and 14 are respectively a vertical section, front elevation, andtop plan views illustrating preferred construction and arrangement.

Referring especially to Figs. 1 to 3 of the drawings, themein frame oithe machine is shown as comprising a basel, corner posts 2 and a topplate '3. The isual printing in strnmentalities (not shown) are mountedon the main frame and are adapted to cooperate with the front face of aplaten 41 mounted in a nesting rear'or slide bai The slide bar isgrooved at its top and bottom faces to cooperate with bearing balls 7which also co operate with grooved guide. rails 8 secured to fixedstandards 9. Arms 10 pivoted on the end bars of the carriage, support aspringpressed feed rack 11 which normally meshes with a feed )inion l2fixed to-the front end of a horizontal shaft 13 bearing in a bracket 14secured to the top plate. An escapement wheel15 is supported at the rearenr of the shaft 13 and is operatively connected therewith, said'escapement wheel cooperating with feed dogs 16 and 17 mounted at thetop ofa dog rocker 18, said dog rocker being pivoted at '19 on a bracket20 depending from the top plate. A link 21 connects the dog rocker withauniversal bar (not shown) which isoperated by the key levers in thecustomary way. A spring drum 22 is connected by a strap 23 with a pin24: depending from the carriage. Said spring drum, as is well known,contains a main spring which tends constantlyto draw the carriageleftward over the top plate, the carriage movements in this direction,however, being ordicapement devices during the printing or spacing ofthe different characters in a line of writing.

The drawings illustrate tabulating lllOt'lF anisin which comprises astop arm 25 secureap by screws 26 to the slide bar 6. The stop projectsrearwardly from the slide bar and is adapted to cooperate with one ormore t-ihulator stops 27 adjustably mounted on n toothed stop bar 28,said stop bar being iour naled on arms 9 extending rearward from thestandards 9. The stops 2? are normally above the stop 25, as shown inFig. but the stop bar 28 18 adapted to be turned in its hearings tobring said stops in a line so that narily controlled by the operation ofthe esa carriage oernpes'edof end beast and a conthey may cooperate whenthe carriage is re- 1 best shown in Fig. 5, engages openings in saidleased. The means for thus turning thestop l bar 28 comprise an arm 29secured at the right-hand end of the bar 28, said arm being pivotallysecured to a downwardly extending link 30 which passes through anopening in the top plate and is pivotally connected at its lower endwith one arm of a bell crank lever 31, said bell crank being fulcrurnedat 32 to a fixed bracket 33. The other arm of said bell crank ispivotally connected with a forwardly extending slide rod 34 which passesthrough and bears in an opening in the right-hand-front corner post 2,said slide rod at its front end being provided with a tabulator key orbutton 35. A spring 36 coiled around the upper portion of the link 30operates to maintain the stop bar 28 and its actuating devices in normalposition. v1 hen the tabulator key 35 is pushed in, it operates throughthe rod 34 and bell crank 31 to pull the link 30 downward against thetension of the spring 36 and turn the stop bar 28 so as to bring thestops 27 thereon into- .line with the tabulator stop 25 on the carriage.Concurrently the carriage is released.

The means for releasing the carriage which are oper'ated by thetabulator key 25 comprise a finger 37 fixed to and projecting from thelink 30 and contactive with one arm of a lever 33 pivoted at 39'on afixed lug 40. The

other arm of the lever 38 is pivotally connected at 41 with a liftingdevice 42, said de- .vice being bifurcated at its upper portion toengage with cut-outs in the sides of the bracket 14. As usuallyconstructed the bifurcations at the upper end of the device 42 terminatein lifting shoes which are adapted to engage with the teeth of the rack11 to separate it from the feed pinion 12 and release the carriage. Inthe present case, however, I prefer to dispense with these lifting shoesand in the form now being described to provide the device 24 with alateral off-set 42 formed with a horizontal slot 42 which 4 provides aconnection to the retarding consaid plate and the plate 44.

trivance, operating said .contrivance to re lease the carriage ashereinafter described.

. The retarding contrivance is pivotallysupported on a bracket composedof two rightangled plates 43 and 44, the plate 44 having a horizontalarm which rests on a corresponding horizontal arm of the plate 43, thetwo plates being secured to the top plate 3 by a leaded screw 45. Ears43 on the'bracket plate 43 prevent relative motion between A in or dowel46 passes through the horizonta portions of the two plates into the topplate and prevents the bracket as a whole from turning on the screw as apivot. The upstanding arms of the plates 43 and 44 are spaced apart toreceive between them the retarding contrive ance which is pivotallymounted on a headed and shouldered screw 47. Said screw, as

The retarding devices are concase mounted on the pivot screw 47, theretarding devices proper are arranged within the box 48. Said devicescomprise a sleeve formed with a central opening through which the shankof the pivot screw 47 passes, as shown in Fig. The sleeve 50 is providedwith a radial-arm 52 which terminates in a diamond-shaped wedge or cam53. One arm 52 and wedge 53 are preferred but if desired a second may beprovided, as indicated in the modified construction shown in Fig. 8wherein the bearing opening which receives the ivot screw is designatedas 51. If preferre additional wedges may be employed'. One end of thesleeve50 is adapted to abut against the cover 49 when the latter is inplace. From the opposite end of the sleeve an engaging device, in theform of a pin 54 projects into a slot-way or cutout 55 formed on the hub56 of a gear Wheel 57 which is shown detached in Fig. 7. The hub andgear wheel are formed with abearing openm 47. Til shoulders or abutments55 and 55 on the collar 56, which shoulders are adapted to co act withthe pin 54. Normally the in 54 is maintained in contact with the shouder 55 by a wire spring 59 coiled around the sleeve 50 and hub 56, theseparts having the same diameter and abuttin one another so that they forma practica y continuous surface except where the cut-out 55 occurs. Oneend of the spring 59 is hooked in-a hole 60 in 58 which receives thepivot screw e ends of the cut-away 55 providethe gear w eel 57 and theop osite end of said spring is hooked around t e radial arm 52. The gearwheel 57 and sleeve 50 are adapted to rotate freely on the pivot screw47 Because of the tendency of the spring 59 to maintain the pin orengaging device 54 in contact with the shoulder or engaging device'55said ear Wheel and said sleeve will turn as a sing e member unless oneof th m is held or prevented from movement in which case it may occurthat because of the springiaconn'ection between the two, the other ofthem may continue .its turning movement, so that a relative movementbetween-the gear wheel and'the sleeve'may take place, The s ring 59, inother words,-

is double actin ts operation will be discus sed'more, ful y later on.Pins or plugs 61 be understood that the casing Composed of and 62 areadapted to slide loosely in open- I raised or lowered the other part orarm at the ings 63 formed in the box 48 and cover plate 49 (Fig. Thesepins, formed with round- I ed heads 61 and 62 are supported on thespring which is folded as. shown at 65 and secured by aheaded screw 66to a block 48 within and integral with the box 48. The

pin 67 (Fig- 4) prevents therhecking spring 3 as a whole from turning onthe screw 66 as a An MlJUSlZlDg or thumb screw 68 811-- pivot. gages ina threaded opening in one spring arm 64 and is provided with a flange 68which contacts with the outer face of the other s ring arm 64, the screwpassing loosely throu 1 the latter arm. The shank of the thum screwpasses-through an opening 49 in the cover plate 49. The head 68 of saidthumb screw is outside the casing where it may be readily mani ulated.By turning the thumb screw it wil be apparent that'the distance betweenthe spring arms 64 may be varied and the rounded heads 61" and 62 of thepins 61 and 62 respectively may be" brought into varying normalrelations, and power to flex the sprin checking arms 64. hormally the;distance etween the contact devices or heafd's 61 and 61- on thecheckingdevices or spring arms is always less than the greatest width of thediamond shaped wedge 53 but in operation the latter is adapted tocooperate with said checking devices and force ceives a pin 71 by whichsaid gear wheel 69 is secured to a shaft 72.

, them apart at times under impulses received from the main carriagepropelling's ring of the machine, the spring arms 64 yie f the wedge ispassing between them, said spring arms returning to normal positionafter the wedge has passed them.

The gear wheel 57 meshes with a 006 aerating gear wheel 69-having a hub7 O which re- Said shaft is adapted to turn in bearing openings in thebox 48 and cover plate 49, said box being formed with a thickenedportion 48 to provide a i comparatively wide bearing surface for theshaft 72. .Said shaft extends forward outside the box 48. This forwardportion car- -ries a toothed wheel or pinion 73, the latter beingprovided with a hub 74 which is suit- I ably secured to the shaft. ltwill be seen that the toothed wheel 73, shaft 72 and the gear wheel 69act as. a single member and that motion communicated to the toothedwheel 73 will be transmitted by the shaft 72 and gear wheel 69 to thegear wheel 57 and the parts connected therewith. The toothed whcelorpinion 73 underlies the feed rack 11 but normally is separatedtherefrom. It will fulcrum and that when the part or arm of said casingat one ,side of said fulcrum is ding as l l 1 l u l opposite side ofsaidfulcrum will be correspondingly lowered or ralsed. In the presshownin Fig. 6. A spring 75, shown in Fig.

ent instance when the casing is mounted in parallel arms 64 of achecking or retarding 3, is coiled around a headed pin 76 on the bracketplate 43 and has one end secured to said bracket plate and the other endunderlying the casing of the retarding contrivance. Said spring assiststo maintain said retarding contrivance in normal position and to restoreit thereto from operating position when the t'abulator key is'released.

In 0 aeration, when the tabulator key 35 is presse in, the stop or stops27 will be swung down into line with the tabulator' stop 25v andconcurrently the lifting device 42 is raised. This causes the slottedoff-set 42 acting against the hub 74 to swing the 'retarder contrivanceon its pivot and bringthe toothed wheel 73 into engagement with the feedrack 11. Further upward movement of the lifting device 42 will cause thewheel 73 to lift the feed rack from the pinion12, thereby releasing thecarriage and ermitting the latter to run leftward under t epull of themain spring. This leftward movement of the carriage causes the feed rack11 to turn,

the toothed wheel 73 and also the gear wheel 69, both wheels being fixedto the same shaft 72. Rotary movement of the gear wheel 69 will becommunicated to the gear wheel 57 and its hub 56. Viewed from the rearas in Fig. 4, the gear wheel 57 and its hub will turn in the directionof the arrow just above said gear wheel in said figure. Suppose that atthe time the gear wheel'57 starts to turn, the parts are in therelations shown in Figs. 4 and 5 which are corresponding views. In thatcase, because of their spring connection 50, the sleeve 50 willbe turnedwith the gear wheel 57 and its hub, and the normal relation of theseparts will not be altered until the wedge 53 has been brought intocontact with the heads of the spring arms 64. When this occurs thespring arms 64 may flex slightly, I

but these spring arms are much stiffer than the s ring 59 so that thespring arms will arrest t e wedge 53 and the sleeve 50 on which it ismounted. Notwithstanding the arrest of the sleeve 50, the hub 56 and thegear wheel57 will continue to turn by reason of the lost motionconnection between these two parts and the sleeve 50, which lost motionconnection permits relative rotary movement between the gear wheel 57and its hub on the one hand and the sleeve 50 and wedge 53 on the otherhand. During this relative rotary movement the spring 59 will of coursebe wound up beyond its normal tension. As soon as the hub 56 begins toturn independently of the sleeve 59 the shou-l der 55' will separatefrom the pin 54 on the the opposite side of said pin 54. W en theshoulder 55? engages the pin 54, the sleeve 50 and wedge 53 will beforced ahead and the wedge will press the spring arms 64 apart so thatsaid wedge may pass between them. As soon as this occurs thespring 59will at once advance the sleeve 50 relatively to the hub 56 untilthe'pin .54 is brought into' contact again with-the shoulder 55*. Thereafter if the run of the carriage continues, the 0 eration above outlinedwill be repeated; t at is, the sleeve 50 and gear wheel 57 will turntogether until the wedge 53 again contacts with the spring checks fit'which devices will snap back to noi-inalposition as soon as the wedge53 has passed them in the course of the operation above described. Whenthe wedge 53 has again engaged the spring arms 6&1 said wedge and thesleeve 50 will again be arrested? and the train of devices comprisingthe gear wheels 57 and 69 and the I inion 73 will turn inde endentlyuntil the s oulder 55 contacts with the pin 54 and forces the Wedge 53past the stationary checking devices. When the run of the carriage hasended by the contacting of the stop 25 with a stop 27, the tabulator keymay be released and the parts will thereupon be restored to normalposition. The retarding contrivance will be restored by'the combinedoperation of the lifting device 42 and its con nected parts and of therestoring spring 75. It wi be apparent thatmy improved retardingcontrivance insures that a free move-- ment of the carriage, when firstreleased after the retarding contrivance has been connected with it,shall always take place. The extent of this free initial movement mayvary because sometimes at the start the wedge 53 may be farther from thestationary checking devices than at other times, and this free initialmovement will in such case be made up of the distance the wedge has totravel befdre being arrested by the stationary checking devices plus thedistance the gear wheel 57 may travel thereafter independently of thewedge 53 and sleeve 50 before engagement of the shoulder 55 with the pin54. It may happen that at the time the carriage starts to run, e, wedge53 may beengaged -The with v the stationary checkin devices or springarms 64 in which case t e initial free run of-the carriage willcorrespond with the distance the gear wheel 57 will turn before theshoulder 55 engages with the pin I54. arts are so pro ortioned, however,that t before theretarding contrivance' is brought less thanthe distancecorresponding to that 6 5 independent turning movement 'of the proachstudy of the construction.

unwind until the shoulder 'mentary retardation of the more,

s distance is su cient to permit the carri;age to acquire considerablemomentum 6 0 of and relation between gear wheel 57, aswill be apparentfrom a Suppose that the-wedge 53 be arrested by the stationary checkingdevices and that the inde endent .turning movement of the gear whee 57has begun, causing the separation of the shoulder 55 from the pin 54 andthat at this time the carriage be arrested and the tabulator ke spring59 .wil 55 has been moved [back into'contact with the pin-54. Duringthis backwardmovement of the shoulder 55 it will be notedthat the gearwheel 57 will turn backward, thereb causing backward turning movement oft e gear wheel69 and of the pin 73. Further it will be released;thereupon the be noted that the end ofthe spring 59 which is hookedaround the-arm 52 of the wedge 53 will remain stationary while theotherend of the spring 59, which is secured on the gear wheel 57, willmove.

Eachtimethatthe wedge' 53 is forced pastthe stationaryfclieckmg devicesthe carriage will be momentarily checked or retarded and its momentumwill be, somewhat less,- ened. As thereafter the momentum is again onthe increase the checkin devices will againcome into operation, tac gthe carriage so to speak and repeating the mocarriage. The result isthat after the first initial free movement'of the carriage said:carriage will be subjected, if the run continues low enough to periodictackling or retardation which may be so regulated both in extent and inthe interval between recurrent operations that harmful shock of thearresting parts maybe avoided andwithout causing an unnecessary loss oftime such as may ,occur with other forms of retardingcontrivances.,J,Furtherduring shortruns ofthe carriage when harmfulshock to the arresting parts does notoccur, the retarding devices maynot be brought into play-at ell, byreas on'of the 10st motionconngtiwlwhich operates initially .when the carria e isireleased.v Owingto the fact that he 0' 53, which coa ts; or can directly with stationarychecking devices, has-alost mo,- tion'or a s ring connection with thecarriage when the atter is running independently of its escapementmechanism, a .free initial movement of the carriagewhen releasedfromsaid escapement mechamsm is always certain to occur.

Van'ous changes may be made without de-' parting from the spirit. of mypresent inven tion. For example, instead of empll ying the thumb screw68 for regulating t' it the spring arms-T64,

be dispensed with 'ke that illustrated said thumb screw 68 ma and aregulating device tension y part;viz;, the wedge mFigs. 9 to 11 may beused. As-shown these figures a, longitudinal-slot 48 may be formed inthe upper or top face of the box or iiou the device 78 is adjusted.

neck 77 of a slidable regulating device which further comprises atransverse body portion 78 within the box, said body portion having twodownwardly extending fingers 78'" which contact with the outer faces ofthe spring arms 64?, said spring arms being always embraced between thefingers 78*. As best shown in Fig. 11, the spring arms 6.4 are separatepieces, being secured one at each side of'a biock 48 integral with thebox 48 by a headed screw 79. The upper face of the neck 77 is formedwith a tapped opening which receives athumb screw 80, the flange 80whereof is adapted to engage the to face of the box 48. The constructionis suc that when the thumb screw is tightened it draws together theflange 80 and the upper face of the body 78, binding the box 48 betweenthese two parts at either side of the neck 77. When the thumb screw isloosened, the tension regulating device 78 may be slid lengthwise oi theslot 48 to the desired position and thereafter secured in said positionby ri toning the thumb screw. It will be apparent that as the regulatingdevice 78is moved toward the devices 64 at the free ends; of thestationary checking devices or spring arms 64 the length of said springarms will be shortened so that it requires greater expenditure of energyto force them apart. In other words, the retarding effect ma y beregulated by adjusting the device 77 along the slot way 48 When thisdevice is employed, the spring arms 64 always maintained parallel nomatter in what posilt is of course to be understood, however, that anyother suit ilo regulating device for the checking or ting device may bemade use-of within my invention; that the checking device itself may bealtered in. construction and arrangement; that the pins 61 and 62 may beomitted but the heads 61 and 62 preferably retained and that variousother changes may be made in other parts of the retarding contrivance inorder to adapt it to other conditions and for improving itsconstruction.

in Figs. 12 to 14 of the drawings 1 have illustrated other means forconnecting the retarder with the carriage and for releasing saidcarriage. -ln the construction first described, the retarder isconnected with the carriage through the usual swinging carriage feedraehby a pinion 7 3;- which pinion also serves to swing said carriage feedrack-on its pivots so as to release the'carriage. in order toireducewear on the teeth of said carriage feed rash and to reduce theliability of breakof said teeth by reasonioi' the co-action of thepinion '73, i prefer .to provide a sepas rack for coo aeration with theretarder pinion, which raclr in the present instance fixed to thecarriage and serves to connect 5 tnrder i'rmtrivance; that no partmovable bysaid carriage with the-retarder; and to pro vide other meansacting on the usual carriage feed rack to swing it away from thejvarriage feed pinion and thus release the carriage. The additional rack81 is fixedly secured near its ends by screws 82 to lugs 6 projectingrearward from the upper part of the carriage slidebar 6. The rack 81 isarranged 111 rear of the feed rack 11 and on a level therewith as bestshown in Fig. 12. r The retarder contrivance 18 so constructed.

and mounted on the top plate that the pinion 78 underlies the rack 81instead of the rack 11 as in the former construction. .The slottedextension 42% of the lifting device 42- engages with the forward endportion of the shaft 72,which in this instance rejects forward beyondthe pinion 73 as sliown' in Fig. 14. When the lifter 42 is raised byoperating the tabulator key 35, the retarder contrivance will be swungon its pivot to bring the-pinion 72 into mesh with the rack 81. Thecarriage is released at this same operation by a lever 83. Said lever isprovided with a hub 84-which receives a shouldered screw 85 that engagesin a tapped 'hole in the lower guide rail 8 and provides a fulcrum forthe lever 83. Said lever curves downward, leftward and u ward from itsfulcrum and is also off-set 'orward slightly, terminating in a roundedlifting shoe 86 which underlies the feed rack 11. A pin 87 fiXedto andprojecting forward from the lifter 42, engages in a slot 88 in the lever83, this loose connection permitting the lifter 42 to swing the lever 83upward, causing the shoe-85 to engage the feed rack 11 and separate thelatter from the feed pinion 12. The parts are so timed that when thelifting shoe 86 contacts with the teeth of the rack 11, the pinion 73will already have entered for a short distance the teeth of the rack 81,thus insuring a connection of the rcta-rder with the carriage before therelease of said carriage shall have begun. When the carriage is finallyreleased the pinion 73 will be fully engaged with the rack 81. Asstated, I prefer to connect the retarder and release the carriage bythe-means shown in Figs. 12 to 14; but the first described or any otherconstruction may be employed in connection with my reta'rdcrcontrivance, and said contrivance itself may be altered in variousrespects without departing from my invention.

It will be noted that by my present invention I provide a checkingdevice (the wedge shaped cam 53 in the present instance) which has ayielding connection through the spring 59 with the carriage of themachine, said carriage operating to move or rotate said checking device;that a co-acting checking device or devices (that is, the spring arms)is provided with which the movable checking device is (-ontactive in theoperation of the re- -parts; that one of said parts or rotary demove thechecking device independently of ing the slidable' pins 61 and 62; thatthere is parts 56 and 50 inc normal relationship;

the carriage is contactive with said e e-acting checking. device exceptsaid movable checking device; that, owing to the fact that this movablechecking device is yieldingly connected'to the carriage by a spring oryielding connection which provides for a lost motion, a preliminary freerun of the carriage is insured prior to the effective operation of there-' tarder; that the co-acting checking devices are mounted on asupport which remains stationary during the run of the carriage, thatharmful vibration of the co-acting checking devices or noise due tovibration is prevented, the preventing means in this instance bea partor cam 53 which is movable by the carriage into the path in which boththe coacting checking devices normally lie that the hub or part 56 ismovable by the carriage; that the sleeve or second part 50 is mountedindependently of the first part 56; that a yielding connectioncomprising the spring; 59 joins said parts 56 and 50; that said yieldingor spring connection transmits rotary movement from one to the other ofsaid vices (50 in the present instance) carries a cam iixed thereon,said cam being yicldingly connected with the carriage through theyielding or spring connection 59; that said yielding connection. tendsto maintain the that in. said normal relationship the co acting engagingdevices 55 and 54 on said parts are, in contact; that the checking orretarding devices 64 are engageable by the cam 53 on the part 50 to holdthe engaging part 50 until other of said engaging devices (thatis, 55and 54-) are brought into co-action; and that the engaging devices maybe considered to be first the shoulder 55 and the side of the pin 54contiguous to said shoulder 55, and, second, the shoulder 55* and theside of the pin 54 which is adapted to contact with said shoulder 55*. r

What I claim as new and desire to secure by Letters Patent, is z 1. In aretarder contrivance for typewriting machines, the combination. of achecking device, a yielding connection between said checking device andthe carriage of the machine which connection operates to theretardinmaction, and a co actingchecking device, the movable checkingdevice being the only part connected tothe carriage which can contactwith said eo-acting checking device. Q

2. In a retarder contrivancc for typewriting machines, the combinationof a checking device mounted on a support which remains stationaryduring the run of the carriage, a part movable by the carriage in pathin which said checking device normally ms, and a yielding connectionbetween said part and said carriage, through which motion first part, ayielding connection between said parts which transmits motion from onepart to the other independently of the retarding action, and a checkingdevice with which said second part co-acts.

4. In a retarder contrivance for typewriting machines, the combinationof a part rotatable by the carriage, a second part mounted independentlyof the first part, a spring connecting said parts to transmit rotarymovement from one 'to the other independently of the retarding action,and a checking device with which said second part co-acts. i

5. In a retarder contrivance for typewriting machines, the combinationof a cam, a yielding-connection between said cam and. the carriage ofthe'machine, and a spring checking device cooperative with said cam.

6. In a retarder contrivance for typewriting machines, the combinationof a rotary device, a cam fixed thereon, a yielding connection betweensaid device and the carriage of the machine, and a yieldingly mountedchecking device cooperative with said cam. H

7. In a retarder contrivance for type-- writing machines, thecombination of rotary sleeve, a cam'fixed thereon, a mechanical lostmotion connection between said sleeve and the carriage of the machine,and a checking device movable by said cam. 8. In a retarder contrivancefor typewriting machines, the combination of a part movable by thecarriage of the machine, a second part mounted independently of thefirst part, a spring connecting said parts and transmitting motion fromone part to the other, said spring tending to maintain them in normalrelationship, and a checking device with Which said second part co-acts.

9. In a retarder contrivance for type- Writing machines, the combinationof'a part movable by the carriage, a second part mounted independentlyof the first part, coacting engaging devices on said parts, a yieldingconnection between said parts which transmits motion from one part tothe other, and a checking device with which one of said parts co-acts.10. In a retarder contrivance for typewriting machines, the combinationof a part rotatable by the-carriage, a secondflrotary engagement, saidspring transmitting motion from one part to theother, and a checkingdevice engageable by one of said parts.

11. In a retarder contrivance for typewriting machines, the combinationof a part rotatable by the carriage, a second rotary part mountedindependently of the first part, co-acting engaging devices on said.

parts, a spring connecting said parts and tending to maintain certain ofsaid engaging devices in engagement, and a checking device engageable byone of said parts and operative to hold said engaging part until otherof said engaging devices are brought into co-action.

12. A retarder contrivance for typewriting machines comprising ,incombination a gearwheel having a hub provided with engaging devices, asleeve provided with engaging devices cooperative with engaging deviceson said hub, a spring connecting said hub with said sleeve, a-cam onsaid sleeve, and a checking device cooperative with said cam.

13. A retarder contrivance for typewriting machines comprising incombination a gear wheel having a hub provided with engaging devices, asleeve provided with. engaging devices cooperative with, said engagingdevices on said hub, a spring connecting said hub with said sleeve, acam on said sleeve, and two yielding checking devices adapted to beforced apart by said cam.

14. retarder contrivance for typewriting machines comprising incombination a gear wheel having a hub formed with a cut-out portion, asleeve having a pin projecting into said cut-out portion, a coiledspring connecting said hub and said sleeve, said s ring operating tomaintain said pin norma y in contact with one end of said cut-outportion, a cam on said sleeve, and a yielding checking devicecooperative with said cam.

15. A retarder contrivance for typewriting machines comprising incombination a gear wheel having a hub formed with a cut-out portion, asleeve having a pin projecting into said cut-out portion, a coiledspring connecting said hub and said sleeve, said spring operating tomaintain said pin in contact with one end of said cut-out portion, awedge-shaped cam on said sleeve, and a pair of yielding checking devicesadapted to be forced apart by said wedge-shaped'cam.

16. A retarder contrivance for typewriting machines comprising incombination a gearwheel having a hub formed with a cut-out portion, asleeve having a pin projecting into said cut-out portion, a coiledspring connecting said hub and said sleeve, said spring operating tomaintain said pin incontact with one end of said cut-out portion,a camon said sleeve, parallel spring arms, and pins carried by said arms.

17. A retarder contrivance for typewriting machines comprising incombination a gear wheel having a hub formed with a cut-out portion, asleeve having a pin projecting into said cut-out portion, a coiledspring c011- necting said hub and said sleeve, said spring operating tomaintain said pin in contact with one end of said cut-out portion, awedge-shaped cam on said sleeve, parallel spring arms, devices on saidarms cooperative with'said cam, and a device for regulating the, tensionof said spring arms.

18. In a typewriting machine, the combination with a carriage having arack thereon, of a retarder contrivance comprising a key- -controlledcasing pivoted on the frame of the machine, a toothed wheel outside thecasing and engageable with said rack, a rotary part provided withengaging devices, gearing connecting said rotary part with saidtoothedwheel, a second rotary part provided with engaging devices and carryinga checking. device, a spring connecting said rotary parts, and a springchecking device cooperative with said first recited checking device;

19. In a typewriting machine, the combination with a carriage having arack thereon, of a retarder contrivance comprising a key controlledcasing pivoted on the frame of the machine, a toothed wheel outside thecasing and engageable with said rack, two relatively movable engageablerotary parts, gears connecting one of said rotary parts with saidtoothed wheel, a cam on the other rotary art, and a yielding checkcooperative wit said cam. y

20. In a typewriting machine, the combination with a carriage having arack thereon, of a retarder contrivance comprising akeycontrolled casingpivoted on the frame of the machine, a toothed wheel outside the casingand engageable with said rack, a ear having a fixed relation with saidtoot ed wheel, an intermeshi-ng gear having a hub formed with a cut-out,a sleeve having a pin entering said cut-out, a coiled spring connectingsaid sleeve with the hub and maintaining said pin normally in contactwith one end of said cut-out, a cam on said sleeve,'and 'a spring checkcooperative with said cam. v

21. In'a typew'riting machine, the combinationwith acarriage havingarack thereon,

of a retarder contrivance comprising a key controlled casin g pivoted onthe frameof the machine, a toothed wheel outside the -easing andengag'ea-ble with said rack, a gear having a fixed relation with saidtoothed wheel, an intermeshing gear having a hub formed with a cut-out,a sleeve having a pin entering said cut-out, a coiled spring connectingsaid sleeve and said hub and maintaining said pin normally in contactwith one en'd'of said outout, a cam on said sleeve, a spring checkingdevice cooperative with said cam, and means t for regulating theresistance of said checking device.

22. In a typewriting machine provided with a carriage and carriagefeeding devices including two co-acting separable parts, the

combination of a rack on said carriage and independent of said carriagefeeding devices, a retarder mechanism comprisin a movable elementcarrying a toothed whee engageable with said rack, a lifting device formovin said element "and causing said toothed whee Y with a carriage andcarriage feeding devices including two co-acting separable parts, thecombination of a rack fixed to said carriage and independent ofsaid-carriage feed-, ing devices, a retarder mechanism comprising acasing pivoted on the frame of the ma-' chine, a toothed wheel outsidethe casing and cooperative with said fixed rack but normall se aratedtherefrom, a key-controlled slid able, lifting devicev operative toswing said casing on its "pivot and bring said toothed wheel intoengagement with said fixed rack, and a lever operative by said liftingdevice to separate said separable parts of the carriage feedingmechanism.

24. In a typew'riting machine provided with a carriage and carriagefeeding devices including a pinion and a swinging rack normally engagingsaid pinion, the combination of a rack fixed on said carriage, aretarder mechanism comprising a pinion engageable with said fixedrackand mounted on a shaft connected with the retarder devices proper, akey controlled lifting device engaging said shaft, and a lever ivoted onafixed part and operative by said lifting device to swing said swingingrack out of engagement with its pinion.

25. In a typewriting machine provided with a carriage and carriagefeeding devices I including a pinion and a swinging rack normallyengaging said pinion, the combination of a rack fixed on said carriage,a retarder mechanism comprising a pinion engageable with said fixed rackand mounted on a shaft connected with the retarder devices proper,

with a carriage and carriage feeding devices including a pinion and aswinging rack n ormally engaging said pinion, the combination of a rackfixed on said carriage, a retarder mechanism comprising a pinionengageable with said fixed rack and mounted on a shaft connected withthe retarder devices proper, a slidable lifting device provided with aslot engageable with'said shaft,a key operated mechanism for actuatingsaid lifting device, and a lever liar-ring a fixed fulcrum and looselyconnectel with said lever having a lifting shoe engageable With saidswinging rack.

said lifting device,

27. In a typen riting machine provided with a carriage and carriagefeeding devices including a pinion and a swinging rack normally engagingsaid pinion, the combination of a rack member on said carriage, aretarder mechanism comprising toothed'wheel engageable with fsaid rackmember but nor mally separated therefrom, .a key controlled liftingdevice for engaging s'aid wheel with said rack member, and a lever o"erative by said lifting device to disengage said swinging rack. a a

28. In a typewriting machine, the combination of a carriage carrying tworacks, escapem ent mechanism including a pinion adapted to one of saidracks for feeding the carriage step-by-step, a movable retarder adaptedtobe driven by the other of said racks, a key actuated lifter for movingsaid retarder into'engagemerrt with said driving rack, and a leverconnected with saidlifter for disengaging said feed rack from said feedSigned at the borough of Manhattan, city of New York, in the county ofNew York, and State of New York, this 20th day of January A. l). 1909.

JACOB FELBEL.

\Vitn esses E. M. WELLS, J. B. Dnnvns.

